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Numerically Simulating the Sandwich Plate System Structures

Journal of Marine Science and Application 2010年第3期9卷 286-291页

作者：冯国庆李刚刘志慧牛怀磊李陈峰 China National Defense Key Laboratory of Multi-Hull Ship Harbin Engineering University Quality and HSE Department China Petroleum Offshore Engineering Corporation

Sandwich plate systems (SPS) are advanced materials that have begun to receive extensive attention in naval architecture and ocean *** present, according to the rules of classification societies, a mixture of shell and solid elements are required to simulate an *** on the principle of stiffness decomposition, a new numerical simulation method for shell elements was *** accordance with the principle of stiffness decomposition, the total stiffness can be decomposed into the bending stiffness and shear *** and stress response related to bending stiffness was calculated with the laminated shell *** and stress response due to shear was calculated by use of a computational code write by FORTRAN *** the total displacement and stress response for the SPS was obtained by adding together these two parts of total displacement and ***, a rectangular SPS plate and a double-bottom structure were used for a *** results show that the deflection simulated by the elements proposed in the paper is larger than the same simulated by solid elements and the analytical solution according to Hoff theory and approximate to the same simulated by the mixture of shell-solid elements, and the stress simulated by the elements proposed in the paper is approximate to the other simulating *** compared with calculations based on a mixture of shell and solid elements, the numerical simulation method given in the paper is more efficient and easier to do.

关键词： sandwich plate system (SPS) stiffness decomposition laminated shell element

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